Latest: Feds responding to deadly Washington mall shooting

This video image provided by Skagit County Department of Emergency Management shows a suspect wanted by the authorities regarding a shooting at the Cascade Mall in Burlington, Wash., Friday, Sept. 23, 2016. Authorities in Washington State say several people have been killed during a shooting at a mall north of Seattle and that at least one suspect remains at large. (Skagit County Department of Emergency Management via AP)
(The Associated Press)

BURLINGTON, Wash. – The Latest on a fatal shooting at a mall in Washington state (all times local):

9:10 p.m.

Federal authorities are responding to a deadly mall shooting in Washington state.

The Bureau of Alcohol, Tobacco and Firearms and Explosives said Friday night it was deploying to Burlington, Washington, after authorities said four people were killed at the Cascade Mall.

Authorities were searching for a man wearing gray who was last seen walking toward Interstate 5. It wasn't clear if more than one gunman was involved.

___

8:47 p.m.

Authorities in Washington state say four people have been killed during a shooting at a mall north of Seattle and that at least one suspect remains at large.

The Washington State Patrol says on Twitter that the four were shot Friday at the Cascade Mall in Burlington, about 65 miles (105 kilometers) north of Seattle.

Sgt. Mark Francis says authorities are searching for a man wearing gray who was last seen walking toward Interstate 5. Francis says it wasn't immediately known if there was more than one gunman involved.

Francis said at about 8:30 p.m. that the mall had been evacuated and emergency medical personnel were cleared to enter and attend to any injuries. It wasn't immediately clear how many people were hurt.

The Cascade Mall is an enclosed shopping mall in Burlington, Washington that opened in 1990, according to the mall's website. It features J.C. Penney, TJ Maxx, and Macy's stores, among other stores, restaurants and a movie theater.